1991 Porsche 911 vs. 2011 BMW X6
To start off, 2011 BMW X6 is newer by 20 year(s). Which means there will be less support and parts availability for 1991 Porsche 911. In addition, the cost of maintenance, including insurance, on 1991 Porsche 911 would be higher. At 4,400 cc (8 cylinders), 2011 BMW X6 is equipped with a bigger engine. In terms of performance, 2011 BMW X6 (480 HP @ 5500 RPM) has 252 more horse power than 1991 Porsche 911. (228 HP @ 5900 RPM) In normal driving conditions, 2011 BMW X6 should accelerate faster than 1991 Porsche 911. With that said, vehicle weight also plays an important factor in acceleration. 2011 BMW X6 weights approximately 1440 kg more than 1991 Porsche 911. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 2011 BMW X6 (779 Nm @ 1750 RPM) has 493 more torque (in Nm) than 1991 Porsche 911. (286 Nm @ 4800 RPM). This means 2011 BMW X6 will have an easier job in driving up hills or pulling heavy equipment than 1991 Porsche 911.
Compare all specifications:
| 1991 Porsche 911 | 2011 BMW X6 | |
| Make | Porsche | BMW |
| Model | 911 | X6 |
| Year Released | 1991 | 2011 |
| Body Type | Roadster | SUV |
| Engine Position | Rear | Front |
| Engine Size | 3163 cc | 4400 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | boxer | V |
| Horse Power | 228 HP | 480 HP |
| Engine RPM | 5900 RPM | 5500 RPM |
| Torque | 286 Nm | 779 Nm |
| Torque RPM | 4800 RPM | 1750 RPM |
| Fuel Type | Gasoline | Gasoline / Electric Hybrid |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1175 kg | 2615 kg |
| Vehicle Length | 4300 mm | 4879 mm |
| Vehicle Width | 1660 mm | 1984 mm |
| Vehicle Height | 1260 mm | 1689 mm |
